hello don ,happy thanksgiving to you and your family ...i dont mind at all if
you choose to post these pics on the forum .in fact it might bring up some
good conversation .okay here we go ,i had only three weeks to build this
engine ,the driver was a firstyear rookie ,and the car was an out of date
leftover so he could just learn some seat time .suprisingly he was passing
the top guys on the outside ? and he was rookie of the year . they were all
patting me on the back for the great engine .well its at my shop now for a
check up but when i pulled the heads i was SHOCKED , the worst looking flame
travel ive ever seen !4.030 bore but the whole outside of the piston is
clean ,and there is a distinct shark fin clean spot at the intake valve
area .i have never liked the low plug location in the chevy head , and i
sevearly angle milled these heads from 64.cc to 47.5.cc !wich i know just
makes it worse . granted part of this fuel wash is the engine was rich so
that will be adressed , but i doubt thats going to get the complete flame
travel im looking for .what do you think ? ill give you the specs on the
engine in a moment ,but here is the other part of the equation ,the intake
ports at the valve show alot of burnt exh in the bowl area , (could this be a
good thing an a two barrel restricted engine ???? the carb we are useing is
an c&s aerosol billet , hav'nt tested anything else yet thats just what they
had and everyone else is using that style too ,but then again you know how
that goes , a guy will cut his header collecters off and win that night and
the next week everyone has them cut off !..lol the front four cyl's are worse
on the flame travel than the back ,the carb is slid all the way back on the
slider plate ,i know on my flow bench if the carbs back the front runners get
better air flow , if you slide the carb forward the opposite occurs .but i
dont think the dry flow on my bench is a whole lot of help here .we are aloud
to fully port the cast iorn heads (wich i hav'nt done yet ) im using the pro
action 220cc with 2.02x1.6 .but we are not allowed to touch the intake
manifold , we are useing the edelbrock bowtie vic jr #2996 .the cam is a reed
solid roller .625 in x.625 ex duration at fifty is 255 x255 on 106 i picked a
straight up camshaft in fear of over scaveging the exh . in conclusion i just
want to keep the heads for compression ,it dos'nt seem to be to much torque
for this car and the new four link car is coming for next year .but if i
could also get complete burn on the pistons at the same time this thing could
be an ANIMAL !!! thanks for listening to me yak ,but your thaughts would be
greatly appreciated don ....p.s.(man does this guy ever shut up ?)lol...i
forgot to mention we are useing autolite ar AR13 plugs maybe if i can find
somthing with a more progected tip might help ? at least ill get to use my
new spark plug reading kit when i need it the most eh ?...thanks for your
time don ........respectfully.. greg bunner