Mav headers?

[Anonymous]

Has anyone had experience with installing the fspp headers on a 250 Maverick? Seems to be some concern about the starter mount location and I was trying to find something decently priced to replace the stock exhaust manifold.

Also I just replaced the head, burnt valves, with a D0 casting mine was C9, seems the combustion chambers were bigger on the D0? Anyway, I replaced the head, put in the pertronix, all new spark wires and plugs, cap and rotor, and i still get a cough

it runs fine for a sec or two, coughs, runs, coughs, runs..... I've been playing with the carb, but that doesn't seem to be having any effect, Just bought a kit for it hoping that will help, but my friend said it could possibly be a cam wear problem?

 

[kirkallen143]

Go ahead and rebuild the carb, will help more than hurt and since you have it anyways. Have you checked your timing? Play with it a little and see if that helps. What is your plug gap, you did gap them? With pertronix try about 0.040". Fuel filter clogged, maybe?

 

[Anonymous]

Rebuilt the carb, new fuel filter.. doesn't seem to have made a difference. I've had the timing advanced to about 12, gonna set back to 6, and readjust carb, but i really don't think that's the problem as it was doing it before i adjusted it in the first place...

... don't know what else to do besides throw money at it, fuel pump maybe? and yes, i always gap the plugs to 35, (manual says .034) ...

could it be the coil? I put my timing light on the each wire and it seems like it fires steady on each one? maybe ill just spend 30 dollars and get the MSD blaster(40,000) I've been eyeing anyway

 

[Anonymous]

i had the MSD coil, but after 3-4 years it died on me and i just replaced it with a stock coil, man that was a waste, as soon as i can i'm going to get another MSD2 coil (45,000) cause it does make a fair bit of difference, and as far as the fuel pump goes, if u have the money then bgo for it but buy an electric pump and a block off plate for the mechanical pump, that'll be done on my car too soon. I find that playing around with the timing certainly gives different results everytime, but alwas works best as high as it can go before the 'knocking' starts to happen.

 

[plastic-idol]

that sounds like mine did. I had the fuel pump replaced. also, check to see if your choke is stuck.