What do you think top speeds of a 1987 cafe racer with trs drives and 420's.

Cafe's are 35', prob go 62-65 with 420s

It's also gonna be close to 10k lbs. so I think 60 will be pushing it???

I thought some has told me 58. Does that sound right?

What kind of speeds do you think it would do with 650 hp?

Well I am running 600hp per side.in my cafe with b1 drives,and 4 blades and I see 80mph

Sick stingers boat had 700s and did 82-84 through trs' with 640 high 70s, 65 is where it starts taking a LOT more power to gain very little in those hulls from what I understand

Low 60's - if you can get it in some big enough water to unhook the bottom.

So if you put a set of pro chargers on it do you think you would see 71/72

With 650 and trs your looking at 77 78 propped just right and trimmed out plus in a good chop to air the hull a bit so it's less wet. I'm selling mine less power fully updated. Really nice boat they run level and true if you have a chance run in one