Here's a neat little trick that has saved me lots of aggravation on my 67 camaro with a built up 383. Install a Ford starter solinoid next to the battery and run the wire down to your Chevy starter. To do so you'll have to jumper the 2 big wires on your Chevy starter solinoid. Connect the wire from the Ford solinoid to the top big wire on the Chevy solinoid. Run the small wire from your Chevy ignition switch to the small wire on the Ford solinoid. I used to replace one or two solinoids a year and since I installed the ford solinoid I haven't replaced one in the last 3 years with an engine that makes lots more horsepower and throws off lots more heat than it used to.