I have a 1968 olds 350 block with #5 heads. I will be running an edelbrock performer intake, stock pistons for the 68' and headers. Should have 9.5 to 10:1 compression ratio. I know its considered an old grind but all I want is to know if it would work with my setup. Is the duration too long, or lift to high etc... This is an engine pro cam and I know it was probably intended for a big block, but what would it do for my 350. My goal is to have a street car with a decent sound and a little bit of get up, nothing radical, and no racing or anything. Your thoughts would be greatly appreciated.


MC2101

 

What gear and converter are you going to run? I wouldn't want to run anything less that a 3.08 (pushing it) gear and a 2500 rpm stall with that cam in a 350 for it to run correctly.

 

Im running 3.55 gears and im not sure about the torque converter. Ive been trying to figure that out, but there are no markings on it. I have no problem buying a new one though.

 

With the 3.55 gears I'd say you're in the ballpark if those compression numbers are correct. Its sound ok to me with your goals in mind. I too wouldn't mind seeing some more stall on the converter. You may see (feel) less torque in low rpms just cruising around though, but that's where the performer intake and the higher stall should be all right.

 

I also read that the base circle on this cam is .10 to .15 smaller than the stock cam. Will that cause me any problems?

 

Yes, this could effect final push rod length you need. Suggest you invest in an adjustable push rod checker. Just about all the cam and pushrod vendors sell these in different sizes.

 

That is how a lot of cams get their extra lift. You have to remember that there is only so much room in the cam journals to get the lobes through.