fuel

[RoyM]

I replacing the 2.5l/5 speed combo in my 88 2wd s-10 with a 406/350 combo. The motor has stock mechanical fuel pump, do i need a fuel pressure regulator or have to change anything at all regarding the fuel? roy

[knudsonm]

Just remove the intank pump and replace it w/ a length of hose

[MOREPOWER]

No ya can use the mechanical one still on teh v-8,,, but ya can go with electrical little more work involved thou.

[bohn333]

Are you sure it has a mechanical pump. Mine is an 86 and has a electric pump. I used a regulator and run your oil pressure shut off switch directly to your acc. in your fuse box. Thats if you have a electric pump which i think you do.

[bohn333]

i think i\'m confused, which motor, 4 or 8cly?

[4more]

first off the gas will flow through the stock electric in tank pump at least mine did the mech pump on your v8 may or may not need a regulator if it is rated as a stock pump it would not depends just how \"race \" your new engine is if a hi po electric pump is needed

[RoyM]

Im talking about when i drop in the 406 sbc will anything needed to be changed to the fuel delivery? It has a stock mechanical pump...the motor getting pulled is a 2.5. roy

[bohn333]

If you use a mechanical pump then you have to take out the stock electric pump in the tank and replace it with a piece of pipe or tubeing.