How will it perform?

My build is getting real close to being ready to test on the track. Any guesses on how much HP the engine will make? What about ET and MPH in the 1/4?

408
12.5 CR (flat tops with valve reliefs)
Trick Flow CNC Ported with titanium retainers (I don't have the flow numbers but they are available online)
Solid Roller Cam - 660 lift, 258/264 duration at .050 108 LCA
HS roller rockers (1.5's)
Thumper 950ish carb on a Victor 340 and HVH 1" spacer
Hedman Huster headers with 1 7/8" primaries and 3.5 collector

727
Reverse Manual Valvebody
5800 PTC non-lockup

9"
4.10 gears and spooled.

'73 Duster (3000# with me in it)
Caltracs
Calvert mono leafs
Calvert shocks front and rear
FirmFeel uppers and strut rods.

Thanks in advance.
Bill


Ok I knew I had this somewhere and I found it this morning. Here’s some flow testing I did with TrickFlow heads and a stock and ported Victor340. This shows what the restriction will be. Now to be far this intake was tested on and underperforming port one my TrickFlow heads. The drop you see at the upper lifts is caused by the head, not the intake. I have since fixed this and it flows back around 300 where it should.

6B3579B5-5D58-4D65-9206-F70225CD2480.jpeg