so had my mustang running all last summer running a stock small block chevy stock cam and all just good heads. So blow that up went to the dyno low on gas with cast pistons and 20 pounds so ya lol built another engine this year good 993 heads so got it all in the car little background. I have a walbro 255 with 1/2 pressure 3/8 return to a mallory regulator and a 750 holley i set up and 22 degress locked timing. now my question is i got a lunati cam will attach the cam card but it just has no low end power or throttle responce run like a bat outta hell above 1/2 throttle but low spped drivability there is absolutly none so im trying to figure out if the cam i got is not gonna work any help would b appreciated sorry about my spelling and grammer im on my phone

#ad

 

in dur 256
ex dur 270
in lift .500
ex lift .515
lob sep 112

 

all att .050 lift

 

256*in / 270*ex @.050"?? Flat tappet, hyd roller, or...?

This has to be a blower, right? And not turbo? What compression & trans? Who the hell picked this grind for a street car?

 

my idea of a good turbo cam is a rv/tow type cam

 

9.2-1 compression turbo 400 3.23 gear and nope its a turbo lol and it was the cam in the motor already so nobody's choice but it's a mechanical flat tapper

 

http://www.summitracing.com/parts/SUM-K1104/

 

i agree with cat ,, we are building a 383 and will probably be using a 1104-1105 summit cam

 

I honestly don't think I've ever saw a cam with that much duration & so little lift.

 

^^^^^^^^^^^ My thots, exactly!