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Do they have the same engine? If not, then no, it wont work. If they do, make sure they have the same fuel pressure requirment. If the engine and pressure is the same, they should be interchangeable.
The fuse box on a 1986 Buick Regal is located below the dash near the brake pedal. It prevents circuits in the vehicle from being overloaded.
A Chevy 305 produces:130 HP - 250 HP A stock 86 305ci Regal will be the 165 HP or 190 HP version.
There is no adjustment of the pump. You can adjust belt tension, by loosing and adjusting tension with the bolts holding it in place, but that is all.
I have a 1992 regal and it is located under the glove-box behind a piece of black plastic.
YOu can check the inside door panel sticker for the curb weight. SHould be around 3200lbs
Under dash, passenger side, inside the vehicle, mounted on the firewall.
The firing oder is 165432 clockwise, and the nunber one plugis on your Driver side
The bolt pattern for a 1986 regal is 5x4.75.
I put a 455 in a regal.. and it was a snap. get the right mounts, i used factory steel from a 73 centurion 455. then used A body headers ,u half to drill new in the frame ... noithing will line up so dont bother trying.if all goes well for you, the reward is cant be be beat
17 gALLONS SOURCE: http://cgi.ebay.com/ebaymotors/Regal-Fuel-Tank-1978-1979-80-81-82-83-84-1985-1986-1987_W0QQcmdZViewItemQQ_trkparmsZ72Q3a1163Q7c39Q3a1Q7c66Q3a2Q7c65Q3a12Q7c240Q3a1318QQ_trksidZp3286Q2ec0Q2em14QQhashZitem360088305477QQitemZ360088305477 SINCERELY, CHAD
the sensor is going out