No way my engine pulls enough vac. for a 6.5 PV.

I'd like a ride on the skater too john! Its another project boat that I need to get rolling on. Bring your boat down to lake st. clair next year, its a blast every weekend.

If your going prosystems be sure to at least price it thru Champion, last I checked it was cheaper to go thru them than Prosystems direct. Also, where are you dynoing your motors? Is there a place up north?

no blower . 540 dart block. dart pro i heads ,dart single plane intake. .o5o duration in 236 ex244 liftin606 ex617 lobes 112.0 little port work match the manifold and heads msd ing. comp i beleave it 9.6 to i timing 34degree and 1000cfm holley

Just ran across this thread but curious with the guys who posted about loading up with their old carbs , are these supercharged applications and if so are the curburetors you are using boost referenced ones?

Also much has been posted already in regards to flow numbers but our stuff will flow more in most cases then what it is rated at. Our castings are very similar dimensionally to when we used to hand port the Holley stuff so it will flow more air all while using less fuel.

Our 750's will flow a little over 900 and the 850's close to 1000. On 4 barrel stuff the standard is 1.5 '' of Hg.

From what I understand some of the 950 stuff [the ones with the 750 top/850 bottom] were flowed at 2 inches to come up with that rating.

Bajabob what hp and torque did your motor make?