Based on you mph, it does seem that you need to find some missing hp, IMO.
Even though your A/F looks okay going down the track, I would still put a pressure gauge on it to verify it.
I the A/F is right, I would try fattening it up until it loses mph.
I also like the idea of opening the lash. I would not be afraid of 0.024 for a trial.
Yea, that is kinda why I started this thread, seems like I'm missing some power.
What kind of pressure gauge do you mean? fuel pressure?
The car has a clutch fan with a mechanical water pump, so that's like what, 30ish hp?
I have no idea what an orange box pulling 8* of timing might drop hp.
Kept my 3" exhaust corked.
I took off the air cleaner, using NGK heat range 6 plugs.
The gas I used was 90 octane with a bottle of booster.
I was thinking the engine should be up closer to 600 than 500 hp.
Maybe it is ,and it just isn't coming on fast enough, like Andy said, to make up for the big bog off the line.
According to Wallace, Im 525-540 HP
