First, here is what I have.
1977 360 block, bored .030 over
Flat top pistons (supposedly 9:1 cr)
Factory crank, ground .010 on all the surfaces
625 Carter AFB
Eddy Airgap intake
Doug Herbert E3N cam (455/475)
576 heads "cleaned up" stock valves, chrome MP rocker shafts, adj roller rockers.
comp headers (brand unknown) 1-5/8 primaries, 3" collectors
2-1/2 duals, crossover, Edelbrock mufflers
FBO ignition curved for my setup
19 degrees advance at idle, 34 degrees total at 3400
Holley street/strip 72gph E-fuel pump, 3/8 aluminum line, regulated to 5.5psi at the carb.
Power goes through an A-518 and 8.25 rear end with a sure grip and 3.55 gears.
I did not do the actual build. I bought the parts, and a very respect member from our Mopar club built it. Mind you, it was built 15 years ago, and been driven several thousand miles. I only now got around to putting it on a dyno at a club event.....and was thoroughly disappointed. I always new it lacked power, and figured it needed tuning, but damn........
181 hp and 251 ft-lbs ??????
:protest: :violent1: #-o
Obviously it's running lean, and I need to address that first off. But lack of fuel isn't going to make up for what I was hoping to see at the wheels. Everyone was kinda thinking 240 was a realistic goal (assuming good tuning).
I'm looking for some input/opinions on where I should go. Is it just getting choked by the heads? Too Are there larger issues?
Ultimately it's a cruiser, weekend toy.....not any kind of race car and "absolute numbers" don't matter....but it's the biggest engine I have, and it makes the least power. :wack: