It was a good day. Was up at about 3:30-4, couldn't sleep....my dad came down and met me at 8, and we drove for an hour to my dyno guy.
Got the engine lit off and first pull was 571 hp @ 5500. We usually do a short pull to make sure the carbs are doing what carbs should do, and in the A/F range they should be doing it in.
Second pull was to 7000, and it was done at 6500 with 615 hp....
Obviously it was the direction I wanted to go in, but it wasn't going as fast as I wanted.
Everyone noticed that the engine was sounding lazy and not very crisp at all, so I jerked the valve covers off, ran the valves, put them back on, and rechecked the timing. Everything was fine, so we decided to delve into the carbs...
My carb guy works out of my dyno guy's shop and I had brought him another 2x4 set of Quick Fuels to go through. So we pull off David's set and plop on the extra set.
663 hp @ 6700. Now we're getting somewhere. Engine sounded much crisper, pulled strong all the way to about 7200.
Scott (carb guy) said that if I brought him back a cheeseburger, he would stay through lunch and go through David's carburetors. Deal.
We got back from lunch, I hand off the burger, he hands off the carbs. Plop them on, first pull was 675 @ 6700...
That was at 38 degrees total timing. Pulled 2 degrees out and we got the exact same horsepower.
A little more tinkering, ended up at 682 at almost 6800 rpm. Torque was 609 lb-ft.
All of this was at about 170 degree water temp, tried cooling down to 120 and it didn't make a bit of difference...hahaha
Oil pressure was really good, between 45-50 at around 1500 rpm, and crossing over 80 at full song. This was with Valvoline VR1, 10W-30. With the coated bearings, main bearing clearances were around .0016-.0018, and it was about 50 degrees outside today, so I wanted the low viscosity.
No leaks....clean filter.....sweet little engine. Scott ended up pulling about 60 hp out of the carburetors that David was running previously. Wow.
Getting ready to eat dinner with the fam, I'll post videos later on this evening.
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