Originally Posted by mike tkach (Post 4093695)

thanks sam,mild talks to bob madera alot and when discussing my lifter delema with bob,along with john callies they both said that the street lifters my normal parts guy talked me into buying were not right for the spring pressures and rpm,s my engines have so i decided to bite the bullet and change them to the racing lifters that i was origionally going to use.bob also recomended going with the heavier wall pushrods.at first i could not grasp how a .080 wall pushrod could be bending but when it was explained to me what a spintron was seing i decided to upgrade to the .135 wall pushrods.the atmospheric conditions were a lot better today than they were on my last dyno session but i do feel that the changes i made did help a little in the hp department but the peace of mind having the correct parts is the big reward.i want to thank mild thunder and icdedppl for their help today.dan refered to us as THE 3 AMIGO,S.one thing is forsure ,we do help each other and we all learn from each other.

Originally Posted by mike tkach (Post 4093697)

in the boat with the oil cooler conected it drops app 20 lbs,also i changed from brad penn to valvoline oil and even though both are 20w50 the valvoline made more pressure.

Originally Posted by korvetkeith (Post 4093791)

That is awesome. I was reading up on prostock motors recently, they are all about stiff valvetrains over lightness. Monster cam diameters, big lifters, big pushrods, and tremendous spring pressures. They are trying to prevent any unwanted deflection in the pushrod and cam.

Originally Posted by korvetkeith (Post 4093791)

That is awesome. I was reading up on prostock motors recently, they are all about stiff valvetrains over lightness. Monster cam diameters, big lifters, big pushrods, and tremendous spring pressures. They are trying to prevent any unwanted deflection in the pushrod and cam.

Originally Posted by mike tkach (Post 4093719)

we did do some jet changes but in the end we are jetted almost exactly as they were when i took them out of the box,imo the quickfuel carbs are the way to go.i know it sais crane cam on the dyno sheet but that is not correct,these are custom grinds from comp cams 648 lift 256I 270E at .050hyd roller.in the future i will consult with bob madera for my camshafts unless the build warrants a shelf COOKIE CUTTER cam.