Originally Posted by buddy6350
Well I'm trying to build something just to drive on Friday night. Just something to cruise with. I would have figured with the 71 lt1 having pretty much the same piston just with 64cc chambers and the 72 having flat pistons and 76 CC chambers. The 71 being 11:1 and 72 being 9:1. I would have figured mine to be in the middle at 10:1. Not considering the .030 over. But I planning on running it on an octane booster, as for gears I have a 9". Ford rear end. It has 3.50 gears. I really just want a quick 0-100 nothing more. And maybe a good set of breaks. I've got a 78 elcamino. But planning on buying a different. Car to put this in after its done, so I don't rush it. Ready to roll and then drop it in
For the most part octane booster is a waste of money.
If you want a quick street car go with a relatively mild cam, in the 215-220 range and get a mild stall, around 3000. Combine that with your 3.50 gears or even a little more and it'll be a very snappy street cruiser. If its well tuned you should be able to run it on premium if you're a little under 10:1. Otherwise you'll need to throw some race gas in with it too. 100, 110, hell even e85 can all work.