Originally Posted by I'CE (Post 4123551)

did the 548 near 665hp? thanks so much on 242's engine builds your good to go, now he must be careful on the sticks. any prop talk yet ? or just spin em.

Originally Posted by lil red (Post 4123076)

I did on a 548 last week with the same heads and quench, same style piston. Power didn't go up, actually lost some at 36* and egt's only dropped a few degrees. Most of these guys fill up on the road with 93 octane which I prefer, more additives etc. less chance of getting a bad tank of fuel. So I don't mind running a little hotter plug, a little lower air fuel and the temps fall in line. Without fouling plugs or poor idling.

Originally Posted by Borgie (Post 4123618)

Did you go with a a18726543 firing order, or standard BBC?

Originally Posted by Rookie (Post 4123680)

I'm assuming if he used Bobs cam it is the 2/3 4/7 swap. I'm pretty sure they are designed off the new firing order mine from Bob were.

Originally Posted by lil red (Post 4123698)

The 548's cam is a bit more conservative. It was originally selected for a boat with reversion issues. It made 635 and 660tq

Originally Posted by Rookie (Post 4123680)

I'm assuming if he used Bobs cam it is the 2/3 4/7 swap. I'm pretty sure they are designed off the new firing order mine from Bob were.

Originally Posted by MILD THUNDER (Post 4123699)

Nice numbers. Same 305cc as cast AFR with CNC chambers?