engine pops when meth system comes on

I have an smc progressive meth system hooked up to my car, the problem is that whenever the system comes on my engine pops a few times then seems to work fine, I see the air temp drop on the powerlogger and get no knock. Ive adjusted the min setting from 6lb to 18lb and the max setting from 12lb to 25lb in many different combos, still pops, i tried different gaps on plugs ac delco r42ts, now gap at .035 , fuel press 43lb, 60 turbo, boost set 25lb, rjc powerplate,powerlogger,hot wire,tt340 pump,scanmaster,aem air fuel ratio guage,40lb inj,David Huske tranny,now this happens from a dead stop when i powerbrake then full throttle and also when crusing at 65 mph then floor it. any ideas let me know thanks.

Have you tried a cooler plug, R43-44?

Sent from my iPhone using Turbo Buick

No not yet ill get some and set gap at same thanks

will try ,still pops with r44ts plugs

yes it does, sometimes it only does it for a second or two or till i lift out,i just ran with meth off with 25-26lb boost,had 2-3 knocks in 3rd gear only,in first gear afr 9 , o2 was at .780 then stopped reading in 2nd and 3rd, 2nd and 3rd afr was 14 to 15, also my maf readings only go to 248 they use to go to 450 on powerlogger any ideas

UHHHH???? ...UHHHH????

your right thanks for the advise ill turn down the boost and get better reading on powerlogger, Ill post tomarrow after work , thanks again ,no race gas just 93 and extender chip came with the Maf Translator 23/19 deg

well if it broke it would give a better idea whats goin on.

I think what save the motor was that i was running two fuel pumps from kenne bell, one intank 340m and one inline from them also, my afr were usually 9-10, figured they were getting old and replaced with a tt340.

I know guys that did this because they were pissed the car wasn't running right.. Went out on the highway an held it down to the floor !! BUT on the bright side it gave me another job

Hey i finally took car back out and turned boost down and meth off, I ran it a couple of times in each boost setting here are some powerlogger readings;

fuel press @ 43# for all
bst-16-17
a/f 1st gear-9 @15#
2nd-10.5-11.0 @ 17#
3rd-10.5-11.0 @ 17#
O2-.800-.760
inj-85%
maf-284
knock-o
-------------------
bst-17-18
a/f 1st gear -9 @ 15#
2nd-10.5-11.0 @ 18#
3rd-11.o-11.5 2 18#
O2-.740-.730
inj-85%
maf-284
knock-0
---------------------
bst-18-19
a/f 1st gear-9 @17#
2nd-10.5-11.0 @18#
3rd-11.o-11.5 @19#
O2-.740-.720
inj-85%
maf-284
knock-0
-----------------------
bst-20-21
a/f 1st gear-9 @17#
2nd-11.5-12.5 @20#
3rd-11.7-12.6 @ 21#
O2-.730-.670
inj-86%
maf-284
knock 3rd gear @20 # was 1.1
knock 3rd gear @ 21# was 1.9
let me know what u think and what would be next in improveing my performance and maybe getting meth system to work without breaking up thanks again