having problem when boosting

[sillyme]

i finally broke all the new parts in and started boosting last night til now. in every gear i boost it vibrates all the way up to redline. even off boost i get some vibration in 2nd and 3rd gear. is it because i don't have a FPR for the injectors and 255 walbro i'm running? any ideas with the specs i have. thinking about selling the car since the gears grind a little too when i'm speed shifting. this car is a never ending money pit

 

[freshlane]

why don't you have a FPR?

 

[1tgalon]

What new parts did you install? There are a million different things that could cause a vibration. The lack of an FPR with a 255 could cause the engine to run rich causing a rough idle but I don't think this would result in a noticeable vibration in 2nd and 3rd gear.

 

[GVR4592]

It could be a balance shaft out of phase. Have you changed the timing belt recently?

 

[sillyme]

i was playing around with the idea that the balance shaft is going out. i don't think the timing belt ever been replaced. it has well over 180000. would it cause more wear in the shafts? can i pull the shafts out with the motor still in the car? i'm thinking about by passing the stock FPR and putting the SARD FPR i have laying around. but that thing look small too. thanks for the help guys. keep it coming please