Ok for those of you who want to know - the result are in are astounding:

After replacing all my roller lifters, after a stuck accelerator incident after I has my MSD with rev limiter out for repairs. I then found a broken intake valve spring, the inner spring was in about 4 pieces and the valve seal was trashed. Replaced the valve spring and seal (piece of cake - got to use my cylinder air-up tool and moroso valve-spring compressor).

Since I had to wait for the spring to come in from Speed Unlimited, I took the distributor to some good ol' boys who have a distributor machine, who told me they could put 28 degrees of timing on my distributor, all in at 3000rpm, with a jump out curve.

Cost $30 - best $30 I ever spent to get something adjusted.

I put my 357 Chevy back together - set the crank on 7 degrees BTDC and rotated the distributor until the flash on my timing light went off, checked it twice by twisting the distributor back and forth to make sure it was dead on. Locked it down at 7 degrees BTDC. At 3000rpm that gives me 35 degrees of advance. I can adjust + or - 7 degrees with the MSD variable timing module. I adjusted it to a total of 36.

Took out my Jeep to an unused road, this road has a slight incline, clocked at 0-60 with the following run times as the engine warmed up, 5.1, 4.9, 4.7, qne finally 4.6 seconds. These reading are from a Nordskogg, programmable speedo that has been calibrated on a maked mile. I am running 33"x12.5" Firestone Destination tires, and 3.55:1 gears. My Jeep weighs 4300lbs with the hartop, full steel doors, and back seat in.

I would say this is a marked improvement over the Edelbrock Performer 750cfm carb. The Speed Demon by far has more punch than the Edelbrock ever did. I lightened the spring in the secondary actuator, and adjusted the accellerator pump cam for a bigger squirt.

I just took it back out tonight and can consistantly get 0-60 in 5.1 seconds with a cool engine (not yet up to operating speed).

I will play with timing and maybe invest in an MSD detonation sensor.

BTW - I let of at 95mph and managed to do 14.2 in the quarter mile. 95 is too fast for a for a vehicle with only an 8' wheelbase.

I am pretty certain I am cranking out 430 hp with numbers like this.

Next mod will be dual exhaust instead of a "Y" pipe.