Im going out on a limb here, but if you havent already A14Force check this site out. Good info bout different combinations of L, KA and Z engines

http://www.nissantech.com/forums/index.php?showtopic=18

Im guessing you mite have seen this site but oh well, better to try than to not at all!

Dave

well here u go...this is my specs...tell me if a 13 second run all motor is likely........................1972 datsun 620,L20B,je pistons notched for a .570/.292 wicked cam..ported heavily w58 head/w-1mm oversize valves stainless steal..9.5.1 commpression,dual 45mm webers,headers,msd 6al,5speed,4.88 welded rear,slicks,traction bars...

could someone give me a estamation on h.p. and torque...and my 1/4 mile et...the reason is i got all that just puting it together so i just would like to hear ur guys comments...please thank u

Sound like it should haul ass. Get it dyno tuned. Then you'll know what your true HP is. Then using your weight, you should be able to extrapolate your ET.

i will get it dynoed...i'm hopeing for over 150hp.....then i got a nitrous direct port installing as we speak..thats 150 more horses for a well earned maybe 12 or crazy 11 second run...that is 1/4??

Take a look at your cam spec sheet. Find the bit which says lobe seperation angle. if its less than 110 degrees, then it's not ideal for bottle feeding.
Amate of mines 10 second camaro was running 113 degrees of lobe seperation.

the lobe seperation is 106 degrees...i guess thats not good huh?

will it be a big risk??

should i just stick to all motor runs???

my bad..the sep. is 107 degrees..the maker of the cam said the cam is suitiable for the bottle because of the lift..dur..and 107 is the lowest sep. angle to be ok..so 150 shot it is..

will my motor handle..i think yeah...
whats your opinion?????????????