thank you Paulie

nice launch too

Quote from: blykins on June 01, 2017, 01:51:23 PM

Quote from: Falcon67 on June 01, 2017, 09:15:18 AM

If I could find a china shop to repop those things, I'd make a killing.  Ain't paying $140 for a spacer LOL. 

  Between me and a local buddy, we go through them by the dozens.  If you want to try one, I'll sell you one for about half that price. 

can you send me info on one of these spacers

great info,i understand.i looked up the 950 ultra hp and it came with 92s square,the guy had 72s and 76s in it with both powervalves blocked.it fell on its face at 3000 rpms.i didnt have any 92s so i put 88s and 96s in it. with a power valve in the front, no fouled plugs,no smoke.it may have been more carb than i needed thats why i bought a new 850.but i didnt have any trouble and it didnt stumble when you hit it from a dead stop

i run 4.11 gears 27 inch slicks every day on the street every where i go.but i guess streetable hp has a wide range depending on the person, i guess i was talking about limits of a everyday driver,dependable,long lasting,not what different people are willing to go down the road in.

Quote from: fryedaddy on May 31, 2017, 03:31:31 PM

i understand the car needs to be set up right for a small inch fe to perform.i guess the original question meant in a well set up car.i guess a better question is how much power can you get out of a 390

Depends on how far you want to go....750 hp not out of the question, but certainly not "street-able".

where is the street-able cut off at 600,650?

i have a stock 850dp on my 428,i changed from cj heads,pi intake to bbm heads,rpm intake.normally would you have to change jets after the head,intake swap

i may try one of those super suckers,a little pricey,but boy their purdy