If you want to take the notion...
If you want to take the notion of electronic reliability to the next level, it's hard to beat a complete EFI system like this one from Mass Flo EFI. Carburetor problems go out the window as a computer takes over the function of fuel and engine management. It has a list price of $3,194.99.
As we have already mentioned, reliability of operation means safety. One of the most frequent difficulties encountered on the open road in classic cars is ignition problems. They usually arise when the breaker points become worn or otherwise come out of adjustment. Points may deteriorate over the miles but occasionally they will fail suddenly. The popular cure for this condition is an electronic ignition.
Another reliability category...
Another reliability category to think about is cooling capacity. Overheating can be a real problem on early cars. Because of their small amount of radiator frontal area, they often struggle to keep cool under additional heat and load conditions. Installation of an electric fan such as this SPAL unit will help you in situations where there is no fan shroud or extra loads are anticipated. The SPAL fan will set you back around $135.
A setup like this Pertronix...
A setup like this Pertronix distributor will cure your ignition-related ills permanently. If you'd like to retain your stock distributor, a Pertronix Ignitor for your Ford distributor is available separately for $106.51.
Take cooling safety to the...
Take cooling safety to the maximum with an aluminum replacement radiator like this one from Griffin. The extra-thick core and large water passages make it a very efficient unit that fits in the stock core support opening. Teamed up with the SPAL electric fan, this fellow won't have to worry about overheating in Death Valley. We found the radiator for $584.69.
Suspension And Balance
Turning our attention to suspension, a lot of help can be had by adding a larger diameter front antisway bar, and even adding a rear bar as well. You'll get more positive steering response, and a safer and more controlled ride in sharp turns such as freeway cloverleaves. Front and rear bars cost about $100 each at Mustangs Plus.
If you're unhappy with the...
If you're unhappy with the steering and handling precision offered by the OE suspension, many enthusiasts go with a completely new front suspension setup such as this Mustang II arrangement from Heidt's. You get new design equipment precision in terms of suspension, brakes, and steering. Kit prices start at $1,899.
Most of us drive our classic...
Most of us drive our classic Ford cars knowing that they lack the modern safety amenities found on newer cars. We don't know your position on classic Mustang fuel tanks, but we do know that no vehicle type can survive every type of rear impact collision. If you race your car or are concerned that a rear impact may rupture your fuel tank, you may wish to replace it with a fuel cell such as this unit from Fuel Safe. It features an internal bladder that is flexible and will deform without bursting in most circumstances. The Fuel Safe Mustang fuel cell for '65-'68 Mustangs is part number 423415 and costs $1,595.
While the bias-belted and...
While the bias-belted and bias-ply tires that were OE on your '65 Mustang when it was new were the normal equipment for their day, the latest radial tires are far better from a safety standpoint. The amount of improvement in modern tires compared to the OE equipment is enormous. Save the bias-ply tires for show cars and run a killer modern tire such as this Goodyear Eagle. The ride quality, road-hazard resistance, and longevity all make a convincing argument in favor of modern rubber on your classic Ford.
One time on our car the battery...
One time on our car the battery hold-down came loose and the battery ended up in the fan. There was battery acid everywhere under the hood and on the paint. It was a king-sized disaster. A setup like this would have prevented the problem, and added better vehicle traction and balance to boot. This Optima gel battery gets rid of the acid and replaces it with a solid material (absorbent glassmat) making spills impossible. Optima batteries start at about $139.