<VV> Corvair tuning

[djtcz at comcast.net]

Original message - 
I recently rebuilt the engine in my '61 Rampside due to several dropped 
valve seats. The engine is (as best I can tell) the original 80hp, 4 spd 
that came in the truck. I installed new 30 over pistons and jugs, new 
lifters, new head studs and remanufactured '64 110hp heads. I did not split 
the block so it has the original camshaft installed. If I set the timing to 
12 degrees BTDC it runs great but overheats after driving any distance and 
will not restart. If I set it to factory recommendation 4 degrees BTDC then 
as soon as I hit about 30mph it just lays down and has no power, but will 
restart no matter how long it runs. I'm guessing the advance curve needs to 
be adjusted but I'm not sure what I should do. Any suggestions? 

Thanks, 

Scott Ford 
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Do you have a timing light? 
First, with vacuum advance disconnected and plugged on the engine side I'd be checking for a smooth advance increase when the engine is revved up. 

Dan T