[69 Mach I]

Originally Posted by Mark Brye

Well, I ordered the 185's with 58cc chambers. I took the car to the local DynoJet to get a baseline. It sure didnt make what I expected granted I had done no tuning to the car as I received it from Backdraft. I don't even want to post the numbers but I figure this will be a help to someone somehow.
302HP and 323tq. Horsepower flattened out at 5300rpm. My air fuel ratio was between 10-11 so its WAY rich as delivered by backdraft. We checked the timing and it was at 8 initial. So either I have a really bad 392 or I am loosing about 70 due to a super bad tune. Will let everyone know what my new numbers are in a week or so after the head swap. Dyno sure is the ultimate ego deflater!

Also got car weighed. 2540 with 1/4 tank of juice

what transmission do you have?

What cam is in there?