Recent content by Mattcleaver

  1. M

    New to Nitrous

    I'll have to look into used kits as I never have before. We already installed an AEM wideband O2 sensor and gauge. We have the car tuned to run about 12.5:1 N/A at wide open throttle. I guess it makes sense that the plate (being that it is a wet system) takes care of the extra fuel to...
  2. M

    New to Nitrous

    I appreciate the reply! I guess working our way up to bigger shots is definitely the way to start out. We were looking at some reasonable NX plate systems that can be jetted for 100-250 shot. Runs about $423 on summit. First off, can we run 93 octane on an eventual 150 shot? Also, what plugs...
  3. M

    New to Nitrous

    Hello! This is my second time on this forum and the first time, y'all helped me fix a pesky oil leak on my buddies and my 1980 malibu street car. For context, we're two 19 year olds who love cars and rebuilt his blown (cracked piston) small block into a respectable 383 stroker sbc in his dads...
  4. M

    Backfiring on decel

    Hey guys. Second time here. My friend and I just switched his 1980 malibu drag car to open headers. Ignoring the obvious which is that the carb should be rejetted, I’ve got a few questions. First of all, how many steps in jet sizes should we start at? Also, after doing a 6k pull, the backfires...
  5. M

    Killer Oil Leak

    We managed to figure it out! We drilled out the alignment pin holes on the timing cover, installed a new seal, installed the cover loosely, installed the balancer, tightened the timing cover, removed the balancer, torqued the bolts, and put it all back together. Must have been misaligned enough...
  6. M

    Killer Oil Leak

    I’m not sure if it makes a difference but we put a dial indicator on the snout of the crank and turned the motor over. Measured about .004 run out. The balancer and pulley seemed to spin straight though. Next thing is figuring out how to measure the clearance to the seal all the way around.
  7. M

    Killer Oil Leak

    Just took the balancer back off. You can see the two lines where the front and back of the seal were riding so the balancer was fully seated. I’m at a complete loss.
  8. M

    Killer Oil Leak

    That might be our next move if we can’t figure it out. We always put a liberal amount of oil on the balancer before pressing it on. We never actually remover the crank gear from before we rebuilt the motor. All the machine work was done with the gear still in place. The motor didn’t leak before...
  9. M

    Killer Oil Leak

    Here’s another. Sorry for the bad picture quality we’re working out of a poorly lit shed.
  10. M

    Killer Oil Leak

    Here are some pictures Incase they help. It’s not leaking between the pan and cover, just the front main seal. Just ran it again with a different balancer that I cranked all the way down until it hit a hard stop and it still leaked.
  11. M

    Killer Oil Leak

    The leak persisted with a high quality cast aluminum timing cover from edelbrock and a factory GM cover. Otherwise I’d say that’s definitely something to check. Right now we think it might be that the balancer is not seating fully on the crank. From what we can tell it’s stopping when it hits...
  12. M

    Killer Oil Leak

    The timing cover and gasket were using is mr gasket brand, our last resort when trying to eliminate this leak. The pan gasket is a felpro one piece rubber one, seemed like it fit tight against the cover. As far as the crank being in the middle of the seal, that I don’t know. The block came from...
  13. M

    Killer Oil Leak

    Hey guys, this is my first time on this forum. My friend and I (both 18) rebuilt a 383 stoker sbc for his 1980 malibu coupe last year. The engine runs like a top besides one killer issue. We have a a constant oil leak from the front main seal that we absolutely cannot figure out. We’ve change...