Dizzy's locked out @ 34 degrees.. running a 16 degree retard chip to start..
Proform 750CFM main body's/ race metering blocks/throttle plate's W/ 4160 side hung bowls
Old School... Pro Stock Set Up....
primary throttle plates turned 1/2 turn out ( main jets 80 )
secondary throttle plates turned out about 3/4 ( using to set idle )( main jets 84 )
8 corner mixture adj. screws.. ( 3/4 turns out )
idle air bleed's (.075 )
Power Valves : ( 6.5 ) in all 8 corners... ( this will be street driven )
in the other video's I started going down a rabbit hole!!
this is the first time using AFR gauge's to tune...( I have to slow down my brain cause of the delay of reading o2 sensor's ) come to find out I had a bad gauge..
summit racing overnight me another one... Thum's up for summit racing..
anyway the rabbit hole... I had a off idle misfire up to about 3000 rpm.. gauge's show lean so I down sized my air bleeds and it got better.. come to find out it was a bad wiring splice to my MSD 7AL.
weak spark at low RPM ( the richer mixture help the spark jump the gap )
motor's not full tuned but good enough till it hits the street's
Note: if your watching this video and you want more info please take a min. and watch other video's or just ask...
I'm not posting on KZitem to make money.. I'm just documenting my build..
Thank's for watching....
UPDATE.. replace the 10 to 15 year old coil.. motor ran good but as it got up to temp the coil got heat soaked..causing a misfire / break up at low rpm.. you mite not see or hear it in the video but it was there..
again thanks for watching..
MOTOR SPECS... • SBF 414 cubic inch 351...
CYL HEAD SPECS.. • SBF cylinder head's 41...
I mite do another video after the full exh. is installed.. but to save the motor in a nut shell.. the more i run this engine not under a proper load.. meaning a accl and a de cell.. on the piston rings. i take a chance of glazing the cylinder walls.. i have to much money in this build just to look cool on you tube.. so for the people who understand thumb's up for the one's who don't I'm sorry..
Негізгі бет 414 cubic inch SBF..N/A.. build ( tuning the idle circuit )
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