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And that was exactly what that cam was made for. Not the guy with a 3.55 gear and a dual plane intake. It was meant for guys like me, with a 2.66 first gear, 4.56's in the back, a Strip Dominator and Hooker 5204 headers. I was running low 12's at almost 110 and drove the car every day, every where. It wasn't a pig down low either. But I had the Pistons out the hole .040 to get an honest 10.5:1 on pump gas and I installed it at 104 because I had a timing chain (2 degrees for chain stretch and 2 degrees because I didn't want it to run past about 6800 and make power.

The sweet spot was 3500 but it stated getting mouthy at 4000. By 4500 it was very pissed off and stayed that way until 6800. My gear box math said I was close to my lower RPM on the shift change and if I shifted at 6800 it would fall right back to where it needed to be.

I have no doubt if I had the correct clutch that car would have went 11.60's on the street.

There is nothing wrong with that cam if you use it for what it's for. To me, any lower RPM than fall back RPM from shift is just for cruising. That's what I call bottom end. If you think blowing the tires off at 2000 and looking too cool for school it's not your cam. Now, if you want to put on a smoke show and don't mind spinning the hides at 5000 then it is your cam.

Ultra low speed torque sells magazines. Correctly placed gear splits and camming accordingly is always always quicker and faster.
That cam did seem to like to rpm a bit more than the stock oiling was good for. Back then, I thought I was pushing pretty hard on that front and cut the rpm ceiling to 6600.

It makes sense since you already had a true 10:5:1 compression. I have kb107 flat top pistons & x heads so I probably am lower in compression. Just not sure since engine is together & never checked true comp. So I may need to go more advanced to keep some psi. I hope more stall and the 3.91's will do the trick.

That is a 9.8-1 with 72cc’s & a .039 gasket.
Adjust it accordingly to the head gasket dimensions.

In the Ol’E body, the 4.10’s and a 28” tire was pretty OK. The 26” tire was hard to get a good 60’. Also being BFGoodrich street tires.... not so hot though smoke shows were EZ. The 28” tire was still a street tire but at the track and a good surface, it was much better. I still couldn’t drop the clutch were she wanted to be. It had to be walked out a bit.
A decent tire would have been nice.

I recently just scored a 340 with this cam and it has TRW slugs in it. I’ll have to remove the heads again for the numbers on them. I have thought about running it as is after a check out and possible refreshing. The Duster would be a 904 trans car. I don’t have a regular 4spd trans, just an OD unit that also needs to be gotten into.