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The QA1 unit is very nice, it's what I have. It's a little more than half the weight of the stock driveshaft, a significant improvement.

Curious what pulley you're using to get that much boost and what IATs you're seeing. I'm spinning my F1A-94 to about 79k and seeing peak boost of 23-ish psi on a 4.38 pulley.

Yes Darton sleeves.

I went with 11:1 twice. Would do it again if I had the choice in front of me. I do run E85 full time, though. Check out TKM if you're still shopping builders. They built mine and did a truly excellent job.

I just changed the oil on my 2020 PP2 using one of these and I gotta say - just awesome work. This thing made keeping the area around the filter clean super simple. So glad I bought it.

I think you mean burnt valves. I can't speak to the origin of the myth but it's not something you need to worry about on these cars. I also wouldn't worry about hurting anything under the car. Drive it to the shop and get your work done. You're fine.

You're fine. Plenty of people, me included, race with open headers (cutouts). It will be stupid loud though.

Yeah best bet is to trailer it to a warmer climate to race. Make a long weekend of it.

Welcome to the 4-digit PC club. Congrats bro. Mine for reference:

Figure 80-100lbs depending on kit and options. Seats can basically get that back for you. Seats, battery, subwoofer, few odds and ends got me close to 200lbs out of the car. Weighed every component that I took out or replaced and added it all up trying to get as much as possible. Finally caved...

I just wish I could keep my front sway bar. I'd have already bought it if I could.

E85 is the best shit since sliced bread for racers. My anecdote: In a half mile pass I'm maybe 150 yards from the finish line, in 5th gear, WOT, north of 165mph and near 6800rpm and 15psi. The car had dyno'ed at 930rwhp in the configuration I was running. The fuel pressure overcame the fitting...

I'd stick with 11:1 compression. Boss valve springs. I'd agree that I beams are a good idea so you never have to have the motor apart again but a budget is a budget. I wouldn't bother with chains and what not unless you're going to routinely see 8000rpm.

From me to you guys...thanks so much for an awesome shortblock. I've settled around 1100rwhp on my TKM block and couldn't be happier.

Hey. I resemble that remark. 20" wheels are the biggest hit to my car's performance by far but...they look great. Damn it.

Reach out to Rev Auto and see since you're in VA - not a long trip up to Baltimore. I'm guessing 16 hours of labor @ $105. $650 for a custom dyno tune or use the canned tune with a kit.

Ford Racing M-6731-FL820 I use this one because of the heavier weight oil - it has substantially more filter media because it's physically a much larger filter. The 5W50 will provide better protection once oil temps start to really climb under heavy load. 5W20 is an economy oil meant for fuel...

If you're not racing, 5w30. If you do race the car, 5w50.

Dump the oil and you're likely fine.

I think the Reisch is a good choice for the vast majority of people out there. And some of the lower temp thermostats run worse than the Reisch as well and lead to higher CHT. And with E85 a catch can is absolutely necessary IMO.