So I’ve got a h22 built head and forged internals and sleeved block. it’s paired with a pte 6262 with a/r .82, I’m trying to make more power but can’t seem to find a good top mount manifold and which turbo I should go with to make 800+. I was thinking a 6466 or 6766 need help figuring it out.

 

There's not much to help figuring out. Larger turbocharger with turbine exhaust wheel = More power. The question is the fuel that you plan to use to do this. With lower BTUs (even with higher octane) head to the larger turbocharger. The other question is, are you stuck with only using a Precision Turbo?

 

I’m currently on e85 with a walbro 450 but plan to upgrade to a bigger fuel pump once I have everything to make more power, also I’m running 2200cc injectors and I’m open to suggestions on what turbo to go with.

 

I'd be interested in a more thorough build breakdown. Are you on stock fuel lines right now? Just keep in mind that you'll realistically want to run larger fuel lines and one of the following for 800+ hp:

• Eternal pump(s) with a sumped tank
• Double/triple in tank setup
• Fancy surge tank with multiple pumps

I assume you'd be flirting with the limit of 2200cc injectors as well, assuming you wouldn't be cranking up the base fuel pressure

 

can you provide more details?

what parts are in your "built head"?
what internals? what compression?
what are you using for engine management?
what type of fuel?
what fuel delivery?
what does your exhaust consist of?
what does your current tune/graph look like?

cant help you if we dont know what you currently have